Magnetism Question 82

Question: Keeping dissimilar poles of two magnets of equal pole strength and length same side, their time period will be

[DPMT 2001]

Options:

A) Zero

B) One second

C) Infinity

D) Any value

Show Answer

Answer:

Correct Answer: C

Solution:

$ T=2\pi \sqrt{\frac{I _{1}+I _{2}}{(M _{1}-M _{2})B _{H}}} $ Here $ M _{1}=M _{2}=M,\ \ \

Therefore T=\infty $